高中英语《Unit 2 Working the land》period 3课件 新人教版必修4.ppt

period3 workingtheland chemicalproductionbacteriapestnutritionmineral adj 化学的 关于化学的n 生产 制造n 细菌n 害虫 害兽 害鸟n 营养 滋养 食物n 矿物 矿石 warmingup wordspreview discoveryfocussoilreduceroot n 发现 发觉n 焦点 中心点vt 集中 聚焦n 土壤vt 减少 减缩n 根 根源 skimunderlinesummarycomment vt 浏览 略读vt 画底线标出 强调n 总结 摘要 概要n 评论 议论vi 做出评论 buildupleadtofocusonkeep freefrom of 逐渐增强 建立 开发导致 造成 后果 集中 注意力 精力等 于使 免受 影响 伤害等 使 不含 有害物 firstreadingreadthepassage thenfindoutthemainideaofeachparagraph para1 para2 para3 whatisorganicfarming farmersprefernaturalwastefromanimals farmerschangecropseverytwoorthreeyears presentation secondreadingreadthetextagainandanswerthefollowingquestions 1 whatisorganicfarming 2 whatproblemsarecausedbyusingchemicalfertilizers 3 whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat 1 whatisorganicfarming organicfarmingmeansgrowingcropswithoutchemicalfertilizers 2 whatproblemsarecausedbyusingchemicalfertilizers therearethreeproblems first chemicalfertilizersaffectthesoilandthewatersupplybadly second theyallowfarmerstogrowthesamecropyearafteryearandexhaustthesoil third theykillbothhelpfulandharmfulpests 3 whydoorganicfarmersgrowpeasorsoybeansaftercornorwheat farmersgrowpeasorsoybeansaftercornorwheatsothatpeasandbeanscanputmineralsbackintothesoil makingitrichandhealthyandreadytogrowmorewheatorcorn thirdreadingreadthetextagain andfillinthefollowingforms 2 thesoilisnotexhausted 2 peasandsoybeansrenewthemineralsinthesoilbecomesrichandhealthy 3 theyusethesoiltobestadvantage 3 theyplantcropsthatneedsurfacesoilandnextcropsthatgrowatadeeperlevel sothewindandwaterdoesn tcarryawaythesoil alltherichnessofthesoilisused advantagesoforganicfarming reasons 1 thismakesthesoilricherinmineralsandsomorefertile 1 farmersusenaturalwastefromanimals 1 leavingchemicalsinthegroundforalongtimeisnotgoodforthesoilorthewatersupply 2 farmeroftengrowthesamecropyearafter asaresult thesoilgetsexhausted 3 chemicalfertilizerskillbothhelpfulandharmfulbacteriaandpests languagepoints 1thesechemicalsinthefoodsupplybuildupinpeople sbodiesovertime buildup增强 建立 开发hardworkingconditionsbuildupcharacter 艰苦的工作条件能磨练人的性格 2manyofthesechemicalscanleadtocancerorotherillnesses leadto 导致 造成toomuchworkandtoolittlerestoftenleadtoillness 过量的工作和过少的休息会引起疾病 allroadsleadtorome 条条大道通罗马 3theyfocusonkeepingtheirsoilrichandfreeofdisease focuson 集中 注意力 精力等 于youshouldfocusyourattentiononyourwork 把注意力集中在你的工作上 olympus focusonlife 奥林巴斯 瞄准生活 4thisalsokeepstheair soil waterandcropsfreefromchemicals keeps freefrom of 使 免受 影响 伤害登 使不含 有害物 keepfrom 阻止 妨碍ihopeyouwillkeepfromdoinganythingrash 我希望你不要做出任何鲁莽的事情来 writing usetheideasyoudiscussedabovetowriteareportabouthowusefuljiasixie sideasareformoderntimes usethestepsonpage53tohelpyou 1 600yearsagothechinesewriterjiasixiewroteabookqiminyaoshuaboutgoodagriculturalpractices todaysomeofjiasixie sideasarestillveryusefultoourmoderntimes butwehavesomeproblemstodaythatheneverhadinhistime samplewriting someofjiasixie sideasarestillveryusefultoourmoderntimes farmersstillcleartheirfieldsofweeds theystillploughdeeplythefirsttimeandlessdeeplythesecondtime inaddition farmerseverywherestillunderstandthatchangingcropsinthefieldsisstillimportant however wehavesomeproblemstodaythatjiasixieneverfacedinhistime wehaveenvironmentalpollutionthatharmsfieldsandcrops wehavegreatcompetitioninthemarketplace wehavenew dangerousandpowerfulcropdiseases althoughourmodernfarmersstillusesomeofjiasixie sideastoday theyfaceproblemsthatwereneverheardofinjiasixie day exercises选词填空 occupation job profession work a pleasestateyourname ageand below b ihaveafew todointhehousethismorning c lookingafterchildrenalldayishard d myhusbandisattheverytopofmedical occupation jobs work profession 完成句子 stoptalkingand 专心工作 b everyone 集中注意力 whentheyhaveanexam c idecidedto 全力以赴 findingsomewheretolive concentrateonyourwork concentratesthemind concentrateallmyeffortson 2 difficulties canigooutonastoryimmediately 我可以马上出去采访吗 on后接一些名词如visit ho